Here's my story: Two months ago I installed a cometic 2mm head gasket to prep my motor for forced induction. I used arp head studs and torqued them down to 70 ft. lbs with the moly lube. the day of the install, I performed a compression test and it was about 210 on all four. I broke in the headgasket for about 800 miles before I installed the turbo. Well, it's been two weeks after I installed the turbo and I noticed the overflow tank leaking with coolant. I kind of ingnored it and continued to drive. It got real bad when I could smell it from the cabin.

I asked around and people told me it could be a possble blown/leaking headgasket. So i performed another compression test today and the outcome was 195-195-175-175 (ish). I looked into the overflow tank and saw no signs of oil. My oil level is a bit low and sometimes when I stop at a red light I can see small signs of white smoke follow and pass me. I read a post the other day and it said that one of his studs backed out. So I was thinking I might retorque the head to like 80 ft. lbs to see if that would seal the head better. Anyone have any suggestion of what I should do. I am low on cash and don't want to buy another head gasket (not OEM cause my CR will be too high).

 

retorque them to the OEM Specs, not tighter... Some of the bolts may have come loose... if not, you might have popped a head gasket...

 

Did you use moly lube or regular oil ? ARP wants you to check the torque and re-torque it to the same specs if it's not after 10 heat cycles. This only applied to brand new studs

stan

 

Yeah i bought the head studs new but I dont recall the instructions telling me to heat 10x cycles. I did use the moly lube supplied with it and torqued them down to 70 lbs. I think thats why my overflow tank is overflowing. The head lifted overtime and caused a leak between the head and the block. I have over 1000+ miles now on the motor, in which 300+ is boosted miles. I better do this asap. thanks for the info guys